We tie an 80 cm long rubber cord to the ceiling and attach a 50 g weight o its other end. The cord gets extended by 4.0 cm. We raise the weight to the ceiling and let it down. What is the force of the string, when the weight reaches its lowest point?

Q: The light boom AB is attached to a vertical wall by a ball and socket joint at A and supported by…

A: Calculate the position coordinates of points O, A, B, C, and D.

Q: What would be the maximum weight W of the block, shown in the following figure, so that the tension…

A:

Q: Carol wants to move her 32kg sofa to a different room in the house. She places "sofa disks",…

A: Mass of sofa (m) = 32 kg μk = 0.08Constant Speed (v) = 4.4 ms

Q: Consider the following figure. (a) What force (in N) must be exerted by the wind to support a 2.00…

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Q: Suppose you use an ideal pulley of the type shown in Figure 5.18(c) to support a car engine of mass…

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Q: A driver in a 1000.0 kg car traveling at 29 m/s slams on the brakes and skids to a stop. If the…

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Q: What is the magnitude of the force required to stretch a 10 cm-long spring, with a spring constant…

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Q: Q18: Determ ine the resultant for the forces shown in Through point(o). 12 fzure(18) izkN 4KN 2KN O…

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A: (a) Consider the diagram in Figure 5.18(c) and calculate the tension in the rope.

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A:

Q: Bungee Jumping Originating on Pentecost Island in thePacific, the practice of a person jumping from…

A: W=Weight of person=150 poundS=StretchL=Free length of cord=42 feetK=Cord stiffness=16 pounds/foot

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Q: What is the magnitude of the torque this force exert about the base O?

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A:

Q: Suppose you use an ideal pulley of the type shown in Figure 5.18(a) to support a car engine of mass…

A: (a) Calculating the tension in the rope:

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A: Write the expression for net force acting on the pulley in Figure (b).

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Q: What is the magnitude of the force required to stretch a 15 cm long spring, with a spring constant…

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Q: A force of 16 N is required to stretch a spring a distance of 40 cm from its rest position. What…

A: Given:  F = 16 N  y = 40 cm = 0.4 m

Spring Potential Energy

The potential energy is the energy possessed by a body by virtue of its position or the energy held by the object due to its position relative to other objects, its force like stresses, charge, and other factors affecting the particles of the body. The potential energy is the measure of the net work done by or on the body. The spring potential energy is the potential energy stored due to the deformation of an elastic spring and this elasticity is due to the stretched spring. The elasticity is the ability of a solid-state matter to come back to its equilibrium position or original position after any kind of external force is acted on it. It is also known as Elastic potential energy. The potential energy here is caused due to the displacement of the spring from its equilibrium position to another position and this potential energy is equal to the net work done due to the stretching of the spring. It also resembles the same mechanics of the oscillation of a simple pendulum, where due to the external force, the object moves from its equilibrium position to its maximum ends and the periodic motion continues till it comes back to the equilibrium position to rest.